Humanized operation buttons, easy to control. Memory slot with TF card. Easily connect to a PC or laptop without the need for a driver. Fashionable and fashionable design, suitable for men and women to wear. Suggested for other outdoor activities, such as travelers and students. Video format: AVI video Encoding: M-JPEG Video resolution: 2560 x 1440P Video frame rate: 30fps Media playback software: software that links to the operating system or mainstream video playback software Image format: JPG Image scale: 4:3 Compatible operating system: Suitable for Windows ME 2000 xp 2003 macOS 10.4 Linux. Battery: Large capacity lithium polymer Charging voltage: 5V Charging time: approximately 2 hours Battery life: 120 minutes Interface: Type-C Colour:Black Material:ABS+Glass Type:Without Card Package Contents: 1x wireless Bluetooth glasses 1x charging cable 1x cleaning cloth 1x glasses lens Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.